Home > Respiratory System > Respiratory System of the Head and Neck > Larynx. The larynx is a tough, flexible segment of the respiratory tract connecting the pharynx to the trachea in the neck. It plays a vital role in the respiratory tract by allowing air to pass through it while keeping food and drink from blocking the airway.
Common side effects from nicotine gum include bleeding gums, too much saliva, hiccups, indigestion, slight swelling of the mouth, injury to teeth or cheeks, nausea, upset stomach and sore throat. Less common or rare side effects may include diarrhea, dry mouth, swollen gums, sores in the tongue/throat/mouth, muscle pain, rashes and sweating.
Nicotine withdrawal symptoms can include headaches, irritability, nicotine cravings, anxiety, fatigue, depression, and weight gain. If you experience these symptoms after you stop smoking, it can be helpful to understand that you are not alone.icotine is a stimulant that increases alertness, which was one of the reasons why the use of cigarettes was popular amongst soldiers. Difficulty concentrating is also related to other withdrawal symptoms, including anxiety, depression, irritability, and fatigue, each of which does little to aid ones attentiveness.